Anchor AlarmUS South & Gulf charts — built for how you actually cruise
The Gulf of Mexico, the Florida coast and the Bahamas approach.
Popular sailing destinations
Where this region's sailors actually drop anchor.
The Florida Keys
Reef, flats and the run down to Key West — eyeball navigation in gin-clear thin water.
The Bahamas — Bimini & the Abacos
A Gulf Stream hop from Florida to the banks; charted depths are everything.
Florida Gulf Coast
Tampa Bay, Sanibel and the laid-back barrier islands of the west coast.
The Dry Tortugas
A remote fort and clear water 70 miles west of Key West — a true offshore anchorage.
The Big Bend
Florida's wild, shallow marsh coast — few marks, real self-reliance.
Popular harbours & anchorages
A few of the spots US South & Gulf sailors cruise — all charted in the pack.
- Key West
- The Dry Tortugas
- Marathon
- Tampa Bay
- Sanibel
- Pensacola
- Bimini
- The Abacos
- The Exumas
- Nassau
- Georgetown
Cruising US South & Gulf
The US South and Gulf is thin-water country and the launch pad for the Bahamas. The Florida Keys taper into reef and flats, the Gulf coast's Big Bend is a shallow marsh wilderness, and the Gulf Stream crossing to Bimini is a rite of passage timed around the wind. Hurricane season shapes the calendar June to November. This region covers the Gulf of Mexico, the Florida coasts, and the Bahamas approach, on survey-grade ENC with high-resolution bathymetry offshore.
What’s inside the US South & Gulf pack
Every layer our chart pipeline bakes for this region — yours for $14.99/year.
Nautica Day & Night charts
S-52 vector cartography styled for daylight and night watches.
Depth-aware routing
Route planning that respects your draft and the charted depths.
Seabed & holding
Charted seabed type and holding quality from S-57 substrate — know what you’re anchoring into.
Soundings & depth contours
Spot depths and contours across the whole region.
Tides & currents
Tidal heights and streams, bundled in.
Rocks, wrecks & hazards
Charted obstructions so you can plan a clean approach.
Harbours & anchorages
Marinas, harbours and anchorages along the coast.
Lights, buoys & beacons
Charted navaids with their light characteristics.
Fully offline
Download once over wifi; navigate with no signal.
Sources & accuracy
The US South & Gulf pack is built from NOAA ENC + GMRT + OSM SeaMarks, fused with community-verified rocks, wrecks and navaids. NOAA ENC · GMRT · © OpenStreetMap contributors (ODbL)
- Survey-grade ENC
- 1,853 × 870 NM
- 3,610 MB
Anchoring in US South & Gulf
AnchorQueen is an anchor-watch app first. Every US South & Gulf chart carries seabed type and holding quality from official survey data, so you read the bottom before you drop the hook — then the anchor alarm watches your swing while you sleep.
Auto-renewing, billed securely through your App Store account — no card forms, no separate logins. Cancel anytime.
On iPhone and iPad now — Android coming soon.
Cruising the whole app? Pro includes one region; Max includes three.
Questions
Does it cover the Bahamas crossing?
Yes — the Florida coast, the Gulf Stream approach and the western Bahamas banks, with depth-aware routing for the thin water on the far side.
Is the Gulf's shallow water well charted?
It's built on survey-grade ENC with high-resolution bathymetry, with depth-aware routing tuned to the shoaling Gulf coast and the Keys flats.
Does it work offline on a Bahamas passage?
Yes — fully offline once downloaded, essential where cell coverage ends past the reef.